| GO | Name |
| GO:0005622 | intracellular anatomical structure |
| GO:0005829 | cytosol |
| GO:0006139 | nucleobase-containing compound metabolic process |
| GO:0006147 | guanine catabolic process |
| GO:0006195 | purine nucleotide catabolic process |
| GO:0007399 | nervous system development |
| GO:0008270 | zinc ion binding |
| GO:0008892 | guanine deaminase activity |
| GO:0019239 | deaminase activity |
| GO:0046038 | GMP catabolic process |
| GO:0046055 | dGMP catabolic process |
| GO:0046098 | guanine metabolic process |