Predicted to enable small GTPase binding activity. Predicted to be involved in several processes, including protein localization to cell periphery; protein localization to cell surface; and retrograde transport, endosome to Golgi. Predicted to act upstream of or within positive regulation of protein catabolic process. Predicted to be located in Golgi apparatus; early endosome; and nucleoplasm. Predicted to be part of protein-containing complex. Predicted to be active in trans-Golgi network. Orthologous to human GGA1 (golgi associated, gamma adaptin ear containing, ARF binding protein 1); INTERACTS WITH 17beta-estradiol; bisphenol A; cadmium dichloride.