Predicted to enable DNA-binding transcription factor activity, RNA polymerase II-specific and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Acts upstream of or within several processes, including animal organ morphogenesis; hematopoietic or lymphoid organ development; and post-embryonic digestive tract morphogenesis. Predicted to be active in nucleus. Is expressed in several structures, including alimentary system; brain; branchial arch; embryo mesoderm; and spleen. Orthologous to human NKX2-3 (NK2 homeobox 3). [provided by Alliance of Genome Resources, Apr 2022]