Predicted to enable GTP binding activity. Predicted to be involved in intracellular protein transport and vesicle-mediated transport. Predicted to act upstream of or within protein transport. Predicted to be located in Golgi apparatus. Predicted to be active in cytoplasm and plasma membrane. Is expressed in brain; eye; forebrain; and midbrain. Orthologous to human ARF4 (ARF GTPase 4).