Enables protein kinase binding activity. Acts upstream of or within respiratory gaseous exchange by respiratory system and respiratory tube development. Predicted to be located in cytosol; fibrillar center; and nucleoplasm. Is expressed in several structures, including alimentary system; branchial arch mesenchyme derived from neural crest; central nervous system; genitourinary system; and sensory organ. Orthologous to human TRAF4 (TNF receptor associated factor 4). [provided by Alliance of Genome Resources, Apr 2022]