Predicted to enable GTP-dependent protein binding activity and myosin V binding activity. Predicted to be involved in several processes, including bone resorption; protein localization to plasma membrane; and secretion by cell. Predicted to act upstream of or within peptidyl-cysteine methylation. Located in transport vesicle. Orthologous to human RAB3D (RAB3D, member RAS oncogene family). [provided by Alliance of Genome Resources, Apr 2022]