Predicted to enable several functions, including GTPase activity; guanyl ribonucleotide binding activity; and myosin V binding activity. Predicted to be involved in several processes, including cellular response to insulin stimulus; plasma membrane bounded cell projection organization; and protein transport. Predicted to act upstream of or within autophagy; cell projection organization; and protein transport. Located in several cellular components, including ciliary basal body; ciliary base; and cytoplasmic vesicle. Is expressed in neural retina and photoreceptor layer. Orthologous to human RAB8A (RAB8A, member RAS oncogene family). [provided by Alliance of Genome Resources, Apr 2022]