May mediate microtubule plus end-directed vesicle transport.
Subcellular locations: Cytoplasmic vesicle, Autophagosome, Endosome, Lysosome
Localizes to the external but not to the internal membrane of autophagosomes, and upon autophagosome/late endosome/lysosome fusion, it stays on the external surface of autolysosomes.
Expressed in heart and skeletal muscle.