Immunogen sequence: DMLESSQDNM RTSWVSQMFS EIDVDNLGHI TLCNAVQCIR NLNPGLKTSK IELKFKELHK SKDKAGTEVT KEEFIE Highest antigen sequence identity to the following orthologs: Mouse - 95%, Rat - 93%. May play an role in the regulation of Ins(1,4,5)P3 around the en