The function of Ensembl gene identifier ENSG00000144134 (RABL2A, RAB, member of RAS oncogene family like 2A) is as follows. Small GTPase that plays an essential role in male fertility, sperm intra-flagellar transport, and tail assembly. Binds, in a GTP- regulated manner, to a specific set of effector proteins including key proteins involved in cilia development and function and delivers them into the growing sperm tail. .