Enables calcium ion binding activity and protein serine/threonine kinase activity. Involved in protein phosphorylation. Acts upstream of or within several processes, including odontoblast differentiation; odontogenesis of dentin-containing tooth; and osteoclast maturation. Located in Golgi apparatus and extracellular space. Is expressed in several structures, including alimentary system; central nervous system; connective tissue; genitourinary system; and musculoskeletal system. Used to study rickets. Human ortholog(s) of this gene implicated in amelogenesis imperfecta. Orthologous to human FAM20C (FAM20C golgi associated secretory pathway kinase). [provided by Alliance of Genome Resources, Apr 2022]