Mediates the transfer of lipids between membranes at organelle contact sites (By similarity). Necessary for proper mitochondrial function and maintenance of mitochondrial transmembrane potential . Involved in the regulation of PINK1/PRKN-mediated mitophagy in response to mitochondrial depolarization .
Subcellular locations: Mitochondrion outer membrane, Lipid droplet, Endoplasmic reticulum membrane, Lysosome membrane, Late endosome membrane
May localize to endoplasmic reticulum-endolysosome contact sites.
Widely expressed.