Immunogen sequence: PCKMTNLQAA QGHASCLSPA TPCCAKMHCE PLTADEAHVH LQEEGAFGHD PHLHGCLQGR TKPPYFSRHP AEEPEYAYHI PSSLDGSPRS SRTDSPPSSL DG Highest antigen sequence identity to the following orthologs: Mouse - 70%, Rat - 68%. G protein-coupled receptors (GPRs),