. "Combining with an extracellular signal and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex." . . "G-protein coupled receptor activity" . "EBV-induced receptor" . "Epstein-Barr Virus-induced receptor activity" . "G protein coupled receptor activity" . "G protein linked receptor activity" . "G-protein coupled receptor activity, unknown ligand" . "G-protein linked receptor activity" . "G-protein-coupled receptor activity" . "GPCR activity" . "ligand-dependent GPCR activity" . "Mas proto-oncogene receptor activity" . "orphan G protein coupled receptor activity" . "orphan G-protein coupled receptor activity" . "orphan GPCR activity" . "RDC1 receptor activity" . "receptor activity, G-protein coupled" . "SREB receptor" . "super conserved receptor expressed in brain receptor activity" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .