Predicted to enable GTPase activator activity. Predicted to be involved in COPI coating of Golgi vesicle. Predicted to act upstream of or within protein transport and vesicle-mediated transport. Predicted to be located in Golgi apparatus and cytosol. Orthologous to human ARFGAP3 (ADP ribosylation factor GTPase activating protein 3). [provided by Alliance of Genome Resources, Apr 2022]