| signaling receptor activity | GO:0038023 | 2.49 |
| GABA receptor activity | GO:0016917 | 6.65 |
| molecular transducer activity | GO:0060089 | 2.32 |
| receptor activity | GO:0004872 | 2.32 |
| signal transducer activity | GO:0004871 | 2.28 |
| extracellular ligand-gated ion channel activity | GO:0005230 | 5.42 |
| anion transmembrane transporter activity | GO:0008509 | 4.43 |
| ligand-gated ion channel activity | GO:0015276 | 4.8 |
| inorganic anion transmembrane transporter activity | GO:0015103 | 4.87 |
| GABA-A receptor activity | GO:0004890 | 6.79 |
| anion channel activity | GO:0005253 | 5.23 |
| chloride channel activity | GO:0005254 | 5.36 |
| chloride transmembrane transporter activity | GO:0015108 | 5.24 |
| transporter activity | GO:0005215 | 2.57 |
| ion channel activity | GO:0005216 | 3.71 |
| passive transmembrane transporter activity | GO:0022803 | 3.6 |
| substrate-specific transmembrane transporter activity | GO:0022891 | 2.9 |
| substrate-specific transporter activity | GO:0022892 | 2.72 |
| ion transmembrane transporter activity | GO:0015075 | 3.04 |
| transmembrane transporter activity | GO:0022857 | 2.82 |
| channel activity | GO:0015267 | 3.6 |
| gated channel activity | GO:0022836 | 3.96 |
| ligand-gated channel activity | GO:0022834 | 4.8 |
| substrate-specific channel activity | GO:0022838 | 3.67 |
| transmembrane receptor activity | GO:0099600 | 2.53 |
| transmembrane signaling receptor activity | GO:0004888 | 2.57 |