Enables protein serine/threonine/tyrosine kinase activity. Involved in peptidyl-serine phosphorylation; positive regulation of cellular protein metabolic process; and regulation of circadian rhythm. Acts upstream of or within several processes, including positive regulation of apoptotic signaling pathway; positive regulation of podosome assembly; and protein localization to tricellular tight junction. Located in cytosol and mitochondrion. Is expressed in several structures, including brain; extraembryonic component; future brain; genitourinary system; and spinal cord. Human ortholog(s) of this gene implicated in colorectal cancer; pancreatic adenocarcinoma; and type 2 diabetes mellitus. Orthologous to human MAPK9 (mitogen-activated protein kinase 9). [provided by Alliance of Genome Resources, Apr 2022]