Enables protein kinase A binding activity. Involved in flagellated sperm motility. Acts upstream of or within establishment of protein localization; motile cilium assembly; and transmembrane receptor protein serine/threonine kinase signaling pathway. Located in Z disc; perinuclear region of cytoplasm; and sperm flagellum. Orthologous to human AKAP4 (A-kinase anchoring protein 4). [provided by Alliance of Genome Resources, Apr 2022]