Enables hormone activity. Involved in several processes, including cellular response to alkaline pH; cellular response to thyroid hormone stimulus; and generation of neurons. Located in several cellular components, including collagen-containing extracellular matrix; mitochondrion; and secretory granule. Used to study isolated growth hormone deficiency and type 1 diabetes mellitus. Biomarker of congenital hypothyroidism; osteoporosis; and type 2 diabetes mellitus. Human ortholog(s) of this gene implicated in several diseases, including anemia (multiple); autoimmune disease of endocrine system (multiple); diabetic retinopathy; isolated growth hormone deficiency (multiple); and progeria. Orthologous to several human genes including GH1 (growth hormone 1). [provided by Alliance of Genome Resources, Apr 2022]