Putative Rab GTPase-activating protein which plays a role in vesicular trafficking. Involved in endosome-to-Golgi trafficking. Acts as a bridging protein by binding simultaneously to golgins, located at the trans-Golgi, and to the WASH complex, located on endosome-derived vesicles (By similarity). Plays a role in brain development (PubMed:28823706). May act as a general inhibitor of innate immunity signaling (By similarity). Detected as early as 1 hour post-fertilization (hpf). Primarily localized in the head at 48 hpf. Morpholino knockdown of the protein causes reduced brain and eye size and curved tails at 48 hpf.