Predicted to enable GTP binding activity and GTPase activity. Predicted to be involved in protein localization to plasma membrane and toxin transport. Predicted to be located in nuclear envelope and perinuclear region of cytoplasm. Predicted to be active in endosome; plasma membrane; and synaptic vesicle. Orthologous to several human genes including RAB40B (RAB40B, member RAS oncogene family). [provided by Alliance of Genome Resources, Apr 2022]