Enables GTPase activating protein binding activity. Involved in clathrin-dependent endocytosis; embryo development; and protein localization. Located in clathrin-coated endocytic vesicle and presynaptic periactive zone. Expressed in several structures, including anterior gonad arm; germ line; intestine; nervous system; and vulva. Is an ortholog of human AP2A1 (adaptor related protein complex 2 subunit alpha 1) and AP2A2 (adaptor related protein complex 2 subunit alpha 2).
Predicted to enable small GTPase binding activity. Involved in protein secretion. Predicted to be located in trans-Golgi network. Is an ortholog of human GGA1 (golgi associated, gamma adaptin ear containing, ARF binding protein 1).