Predicted to enable GTPase activator activity and small GTPase binding activity. Predicted to be involved in activation of GTPase activity and intracellular protein transport. Predicted to act upstream of or within regulation of protein localization. Predicted to be located in Golgi apparatus; early endosome; and nucleus. Is expressed in several structures, including bone marrow; heart; nervous system; retina nuclear layer; and yolk sac. Orthologous to human RABGAP1L (RAB GTPase activating protein 1 like). [provided by Alliance of Genome Resources, Apr 2022]