Enables GTP cyclohydrolase I activity. Involved in dopamine biosynthetic process from tyrosine; melanin biosynthetic process; and tetrahydrobiopterin biosynthetic process. Predicted to be active in cytoplasm. Is expressed in several structures, including body wall musculature; dopaminergic neurons; hyp7 syncytium; intestinal cell; and serotonergic neurons. Human ortholog(s) of this gene implicated in several diseases, including BH4-deficient hyperphenylalaninemia B; diabetic angiopathy; movement disease (multiple); sickle cell anemia; and type 2 diabetes mellitus. Orthologous to human GCH1 (GTP cyclohydrolase 1).
WB Description
Enables GTP cyclohydrolase I activity. Involved in dopamine biosynthetic process from tyrosine; melanin biosynthetic process; and tetrahydrobiopterin biosynthetic process. Predicted to be located in cytoplasm. Expressed in several structures, including body wall musculature; dopaminergic neurons; intestinal cell; muscle cell; and serotonergic neurons. Human ortholog(s) of this gene implicated in several diseases, including BH4-deficient hyperphenylalaninemia B; diabetic angiopathy; and movement disease (multiple). Is an ortholog of human GCH1 (GTP cyclohydrolase 1).