Predicted to enable AP-1 adaptor complex binding activity and kinesin binding activity. Predicted to be involved in negative regulation of receptor recycling and vesicle targeting, trans-Golgi to endosome. Predicted to act upstream of or within several processes, including negative regulation of cell motility; negative regulation of substrate adhesion-dependent cell spreading; and regulation of Arp2/3 complex-mediated actin nucleation. Predicted to be located in Golgi apparatus and transport vesicle. Predicted to be active in endosome. Orthologous to human AP1AR (adaptor related protein complex 1 associated regulatory protein). [provided by Alliance of Genome Resources, Apr 2022]