GO:0099600	F	1.00	transmembrane receptor activity
GO:0004889	F	0.99	acetylcholine-activated cation-selective channel activity
GO:0004888	F	0.96	transmembrane signaling receptor activity
GO:0043169	F	0.94	cation binding
GO:0015464	F	0.94	acetylcholine receptor activity
GO:0042166	F	0.93	acetylcholine binding
GO:0004930	F	0.62	G-protein coupled receptor activity
GO:0099589	F	0.57	serotonin receptor activity
GO:0008227	F	0.57	G-protein coupled amine receptor activity
GO:0004993	F	0.56	G-protein coupled serotonin receptor activity
GO:0005232	F	0.50	serotonin-activated cation-selective channel activity
GO:0097159	F	0.12	organic cyclic compound binding
GO:1901363	F	0.11	heterocyclic compound binding
