Enables mitogen-activated protein kinase kinase kinase binding activity; protein serine/threonine kinase activator activity; and receptor tyrosine kinase binding activity. Involved in positive regulation of protein serine/threonine kinase activity. Predicted to be located in nuclear speck. Predicted to be part of protein-containing complex. Is expressed in several structures, including alimentary system; brain ventricular layer; genitourinary system; liver; and sensory organ. Orthologous to human DAZAP2 (DAZ associated protein 2). [provided by Alliance of Genome Resources, Apr 2022]