Enables MAP-kinase scaffold activity; kinesin binding activity; and protein kinase binding activity. Involved in several processes, including anterograde axonal protein transport; positive regulation of neuron migration; and regulation of MAPK cascade. Acts upstream of or within several processes, including JNK cascade; lung development; and nervous system development. Located in several cellular components, including Golgi membrane; axolemma; and smooth endoplasmic reticulum. Is expressed in several structures, including brain; extraembryonic component; genitourinary system; lung; and spinal cord. Orthologous to human MAPK8IP3 (mitogen-activated protein kinase 8 interacting protein 3). [provided by Alliance of Genome Resources, Apr 2022]