Acts as an inhibitor of mitochondrial fission. Interacts with MFF and prevents DNM1L recruitment to mitochondria, promoting a more fused mitochondrial network.
Subcellular locations: Cytoplasm, Cytosol, Mitochondrion outer membrane
Predominantly localizes to the cytosol, with a minor fraction at the outer mitochondrial membrane.
Enriched in the pancreatic beta cell and the testis and is expressed at low levels in other tissues tested.