Enables protein serine/threonine kinase activity. Involved in protein phosphorylation. Acts upstream of or within several processes, including negative regulation of intracellular signal transduction; peptidyl-serine phosphorylation; and regulation of angiogenesis. Located in cytosol and nucleus. Is expressed in several structures, including cardiovascular system; early conceptus; ganglia; genitourinary system; and salivary gland. Orthologous to human MAPK7 (mitogen-activated protein kinase 7). [provided by Alliance of Genome Resources, Apr 2022]