Hmbs - hydroxymethylbilane synthase

Enables several functions, including amine binding activity; hydroxymethylbilane synthase activity; and uroporphyrinogen-III synthase activity. Involved in several processes, including cellular response to dexamethasone stimulus; cellular response to lead ion; and response to estradiol. Located in several cellular components, including axon; cytosol; and perinuclear region of cytoplasm. Colocalizes with condensed chromosome. Biomarker of bilirubin metabolic disorder and liver carcinoma. Human ortholog(s) of this gene implicated in acute intermittent porphyria and sickle cell anemia. Orthologous to human HMBS (hydroxymethylbilane synthase). [provided by Alliance of Genome Resources, Apr 2022]