Immunogen sequence: LSIISGKQST KPFDLSSLTS NAVSSVTAGA GLFLLADSMV ALRTASQHCG SEMDYLSSLP YSEYYYPIYE IKDCLLTSVS LTGV Highest antigen sequence identity to the following orthologs: Mouse - 49%, Rat - 46%. This gene encodes a member of the membrane-spanning 4A