GPR34Probable G-protein coupled receptor 34 is a protein that in humans is encoded by the GPR34 gene. The receptor binds to lysophosphatidylserine.FunctionG protein-coupled receptors, such as GPR34, are integral membrane proteins containing 7 putative transmembrane domains. These proteins mediate signals to the interior of the cell via activation of heterotrimeric G proteins that in turn activate various effector proteins, ultimately resulting in a physiologic response.