Combining with an extracellular amine 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 bile acid receptor activity
G protein-coupled chemoattractant receptor activity +
G protein-coupled chemorepellent receptor activity
G protein-coupled cytokinin receptor activity
G protein-coupled estrogen receptor activity
G protein-coupled folate receptor activity
G protein-coupled GABA receptor activity
G protein-coupled glucose receptor activity
G protein-coupled glutamate receptor activity +
G protein-coupled neurotransmitter receptor activity +
G protein-coupled nucleotide receptor activity
G protein-coupled olfactory receptor activity
G protein-coupled opioid receptor activity +
G protein-coupled peptide receptor activity +
G protein-coupled photoreceptor activity
G protein-coupled purinergic nucleotide receptor activity +
G protein-coupled pyrimidinergic nucleotide receptor activity +
G protein-coupled receptor activity involved in regulation of postsynaptic membrane potential +