On 5 July 2017 Želionis signed with Neptūnas Klaipėda of the Lithuanian Basketball League.

[2] On 10 January 2020 he signed with ESSM Le Portel of the French LNB Pro A.

[4] On 13 September 2022 Želionis signed with New Taipei CTBC DEA of the T1 League.

[7] On December 3, Želionis signed with the Kaohsiung Aquas of the Taiwan Professional Basketball League (TPBL).

[8] Želionis played for the Lithuania national team during 2019 FIBA World Cup qualifiers.