1-alpha,25-dihydroxyvitamin D3 24-hydroxylase activity https://github.com/geneontology/go-ontology/issues/28340 https://github.com/geneontology/go-ontology/issues/30193 GO:0030342 calcitriol 24-hydroxylase activity Reactome:R-HSA-209765 1,25-(OH)2D3 24-hydroxylase activity Catalysis of the hydroxylation of C-24 of 1-alpha,25-hydroxycholecalciferol (25-hydroxyvitamin D3; calcitriol). RHEA:24964 Reactome:R-HSA-211950 molecular_function Reactome:R-HSA-5602004 vitamin D 24-hydroxylase activity