Tags: Protein.
G protein-coupled receptor 81 also known as GPR81 is a protein that in humans is encoded by the GPR81 gene.G protein-coupled receptors (GPCRs or GPRs) such as GPR81 contain 7 transmembrane domains and transduce extracellular signals through heterotrimeric G proteins.Lactate activates the GPR81 receptor which in turn inhibits lipolysis in fat cells.