Enables MAP-kinase scaffold activity; identical protein binding activity; and protein kinase binding activity. Involved in negative regulation of JUN kinase activity; negative regulation of apoptotic process; and signal transduction. Located in cytosol; growth cone; and perinuclear region of cytoplasm. Human ortholog(s) of this gene implicated in type 2 diabetes mellitus. Orthologous to human MAPK8IP1 (mitogen-activated protein kinase 8 interacting protein 1). [provided by Alliance of Genome Resources, Apr 2022]