Predicted to enable ATP binding activity; JUN kinase kinase activity; and mitogen-activated protein kinase kinase kinase binding activity. Involved in positive regulation of smooth muscle cell apoptotic process. Acts upstream of or within MAPK cascade; negative regulation of motor neuron apoptotic process; and response to wounding. Predicted to be located in several cellular components, including axon; dendrite cytoplasm; and perikaryon. Is expressed in several structures, including alimentary system; central nervous system; early conceptus; genitourinary system; and sensory organ. Human ortholog(s) of this gene implicated in colorectal cancer; ovarian serous carcinoma; pancreatic cancer; respiratory system cancer (multiple); and urinary bladder cancer. Orthologous to human MAP2K4 (mitogen-activated protein kinase kinase 4). [provided by Alliance of Genome Resources, Apr 2022]