Predicted to enable AP-2 adaptor complex binding activity; GTPase activator activity; and retromer complex binding activity. Predicted to be involved in several processes, including activation of GTPase activity; positive regulation of receptor internalization; and retrograde transport, endosome to Golgi. Predicted to act upstream of or within protein transport. Predicted to be located in Golgi apparatus; autophagosome; and endosome membrane. Predicted to be part of AP-2 adaptor complex; Atg1/ULK1 kinase complex; and retromer complex. Orthologous to human TBC1D5 (TBC1 domain family member 5). [provided by Alliance of Genome Resources, Apr 2022]