in taxon neurotransmitter receptor activity Combining with a neurotransmitter and transmitting the signal to initiate a change in cell activity. A strict definition of neurotransmitter receptor activity would limit its use to receptor activity at the postsynaptic membrane as part of synaptic transmission, but we recognize that usage is often much broader than this. For the strict use case, please see 'postsynaptic neurotransmitter receptor activity' GO:0030594 signaling receptor activity Metazoa