This presumed domain is found in members of the TMEM132 family. TMEM132A may be involved in embryonic and postnatal brain development [1]. TMEM132D may be a marker for oligodendrocyte differentiation [2].

1: Cloning and characterization of a novel GRP78-binding protein in the rat brain. Oh-hashi K, Naruse Y, Amaya F, Shimosato G, Tanaka M; J Biol Chem. 2003;278:10531-10537. PMID:12514190

2: Molecular cloning of a novel transmembrane protein MOLT expressed by mature oligodendrocytes. Nomoto H, Yonezawa T, Itoh K, Ono K, Yamamoto K, Oohashi T, Shiraga F, Ohtsuki H, Ninomiya Y; J Biochem. 2003;134:231-238. PMID:12966072