The former silver medal-winning All Blacks Sevens team member at the 2014 Glasgow Commonwealth Games, and participant in 16 World Series Sevens tournaments, has revelled since joining the Hurricanes.
He was originally signed by the Blues in 2012 but struggled to make more than six appearances across three seasons with the side. After no Super Rugby in 2016 he was picked up by the Hurricanes in 2017 and forcing his way into All Blacks contention on the back of some outstanding performances.
While he couldn't crack the Blues starting lineup he did make 30 appearances for Auckland in the national championship, scoring 10 tries over three years.
Since joining the Hurricanes he also signed with Wellington for whom he played 28 times while crossing the goal-line 14 times.
But it was in the Hurricanes environment that he has thrived with his two tries last week lifting his try haul since 2017 to 28 tries.
Lam said: "Growing up, I always wanted to play Super Rugby and I'm truly proud that I've been able to do that. But I do feel in my heart that it's time for me to try something else."
The student of geography and marine biology said he would be fully committed to the Hurricanes for the remainder of his stay.
"Ultimately, I enjoy winning and want to have a good season where we end on a high. There is still a lot of rugby to play and I want to make sure I give back to the team and all the loyal 'Canes fans.
"Since moving to Wellington I've grown to live this city. It's my home now and I have enjoyed every second I've been able to play in this jersey," he said.
Coach Jason Holland said Lam had been injured when he first joined the Hurricanes and had worked hard in rehabilitation to get back into form.
"Since then, he has become a force to be reckoned with in all facets of the game and the team will miss his influence at training and on game day," he said.