Immunogen sequence: ETLELLLKEF FEYFGNFAFD KNSINIRQGR EQNKPDSSPL YIQNPFETSL NISKNVSQSQ LQKFVDLARE SAWILQQEDT DRPSISSNRP WGLVSLLLPS Highest antigen sequence identity to the following orthologs: Mouse - 85%, Rat - 86%. The protein encoded by this gene is a