Enables ATP binding activity; magnesium ion binding activity; and protein serine/threonine kinase activity. Involved in intracellular signal transduction and regulation of insulin receptor signaling pathway. Acts upstream of or within insulin receptor signaling pathway and protein phosphorylation. Located in cytoplasm and nucleus. Orthologous to human SIK2 (salt inducible kinase 2). [provided by Alliance of Genome Resources, Apr 2022]