[7][8][9] On 25 October 2016, he made his debut for the Knicks in their season opener, scoring seven points in nine minutes off the bench in a 117–88 loss to the Cleveland Cavaliers.

[14] On 1 July 2019, Kuzminskas parted ways with Olimpia Milano after a season and a half playing for them and winning one Italian championship.

[16][17] Kuzminskas was selected to the 2020 VTB United League All-Star Game where he scored 14 points, grabbed 1 rebound and dished out 4 assists.

[citation needed] On 5 July 2021 he signed with the Russian team Zenit Saint Petersburg of the VTB United League and the EuroLeague.

During his trip to Canada, he toured the Toronto Raptors' arena[26] and went to Kretinga, a Lithuanian Youth Summer Camp in Wasaga Beach, Ontario.

[28] While in the NBA, a fan-made Instagram account entitled "dontsnoozeonkuz" gained popularity through various satirical and serious postings about Kuzminskas.

The account mainly focused on promoting Kuzminskas as a basketball player, and frequently requested his then-current team, the New York Knicks, to increase his playing time.