| signaling receptor activity | GO:0038023 | 2.49 |
| drug binding | GO:0008144 | 5.03 |
| molecular transducer activity | GO:0060089 | 2.32 |
| binding | GO:0005488 | 0.18 |
| signal transducer activity | GO:0004871 | 2.28 |
| enzyme activator activity | GO:0008047 | 3.56 |
| molecular function regulator | GO:0098772 | 2.51 |
| heterocyclic compound binding | GO:1901363 | 1.06 |
| G-protein coupled receptor activity | GO:0004930 | 2.95 |
| serotonin receptor activity | GO:0099589 | 6.85 |
| G-protein alpha-subunit binding | GO:0001965 | 6.6 |
| G-protein coupled serotonin receptor activity | GO:0004993 | 6.91 |
| enzyme regulator activity | GO:0030234 | 2.85 |
| GTPase activator activity | GO:0005096 | 4.11 |
| GTPase regulator activity | GO:0030695 | 4.01 |
| nucleoside-triphosphatase regulator activity | GO:0060589 | 3.92 |
| G-protein coupled amine receptor activity | GO:0008227 | 5.83 |
| serotonin binding | GO:0051378 | 7.54 |
| amine binding | GO:0043176 | 7.34 |
| transmembrane signaling receptor activity | GO:0004888 | 2.57 |
| protein binding | GO:0005515 | 0.46 |
| organic cyclic compound binding | GO:0097159 | 1.05 |
| transmembrane receptor activity | GO:0099600 | 2.53 |
| receptor activity | GO:0004872 | 2.32 |