The small GTPases Rab are key regulators of intracellular membrane trafficking, from the formation of transport vesicles to their fusion with membranes. Rabs cycle between an inactive GDP-bound form and an active GTP-bound form that is able to recruit to membranes different sets of downstream effectors directly responsible for vesicle formation, movement, tethering and fusion (PubMed:23936529). RAB41 is required for normal Golgi ribbon organization and ER-to-Golgi trafficking (PubMed:23936529). . This is the function of Ensembl gene identifier ENSG00000147127 (RAB41, RAB41, member RAS oncogene family).