Combining with any component or product of the complement cascade and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity. [GOC:add, GOC:ai, GOC:pg, GOC:signaling, ISBN:0781735149, PMID:11884446]
Full description or abstract
Collection
C5: Ontology GO: Gene Ontology GO:MF: GO Molecular Function