The function of ENSG00000242247 (ARFGAP3, ARF GTPase activating protein 3) is as follows. GTPase-activating protein (GAP) for ADP ribosylation factor 1 (ARF1). Hydrolysis of ARF1-bound GTP may lead to dissociation of coatomer from Golgi-derived membranes to allow fusion with target membranes. .