has primary input or output serotonin(1+) metabolic process phenol-containing compound metabolic process serotonin metabolic process https://github.com/geneontology/go-ontology/issues/30537 serotonin metabolism GO:0042428 The chemical reactions and pathways involving serotonin (5-hydroxytryptamine), a monoamine neurotransmitter occurring in the peripheral and central nervous systems, also having hormonal properties. indole-containing compound metabolic process