function:Receptor for the chemotactic and inflammatory peptide anaphylatoxin C5a, C4a and C3a and their desarginated derivatives. Couples weakly to Gi-mediated signaling pathways.,similarity:Belongs to the G-protein coupled receptor 1 family.,tissue specificity:Frontal cortex, hippocampus, hypothalamus, pons and liver.,
Cell membrane ; Multi-pass membrane protein .
Frontal cortex, hippocampus, hypothalamus, pons and liver.