Predicted to enable protein serine/threonine kinase activity. Predicted to be involved in cytoskeleton organization; intracellular signal transduction; and peptidyl-serine phosphorylation. Predicted to act upstream of or within phosphorylation. Is expressed in several structures, including alimentary system; brain; cardiovascular system; genitourinary system; and immune system. Orthologous to human MAST3 (microtubule associated serine/threonine kinase 3). [provided by Alliance of Genome Resources, Apr 2022]