GO:0008020

G-protein coupled photoreceptor activity

Details: 
Combining with incidental electromagnetic radiation, particularly visible light, 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. [GOC:bf, GOC:dph, ISBN:0198506732]
Evidence Code: 
IEA