Isoform C is produced by readthrough of a stop codon between the codons for Val-875 and Arg-877. This is likely to be a rare event with most transcripts using the stop codon following Val-875. This protein is translated by readthrough of a stop codon. Readthrough of the terminator codon TAG occurs between the codons for Val-875 and Arg-877. There is currently no sequence that provides the identity of residue 876. Belongs to the G-protein coupled receptor 3 family.