dopamine neurotransmitter receptor activity, coupled via Gi/Go Combining with the neurotransmitter dopamine and activating adenylate cyclase via coupling to Gi/Go to initiate a change in cell activity. GO:0001591 GO:0001592 GO:0001593 GO:0001670 dopamine D2 receptor activity dopamine D3 receptor activity dopamine D4 receptor activity molecular_function