The protein encoded by this gene is a member of the type 3 G protein-coupled receptor family. Members of this superfamily are characterized by a signature 7-transmembrane domain motif. The specific function of this protein is unknown; however, this protein may mediate the cellular effects of retinoic acid on the G protein signal transduction cascade.
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^Bräuner-Osborne H, Krogsgaard-Larsen P (Jul 2000). "Sequence and expression pattern of a novel human orphan G-protein-coupled receptor, GPRC5B, a family C receptor with a short amino-terminal domain". Genomics. 65 (2): 121–8. doi:10.1006/geno.2000.6164. PMID10783259.