Is an ortholog of human FOXF1 (forkhead box F1) and FOXF2 (forkhead box F2). Exhibits sequence-specific DNA binding activity. Is involved in mesodermal cell fate specification\; nematode larval development\; and positive regulation of mesodermal cell fate specification. Localizes to the nucleus. Is expressed in the M.dlp\; the M.drp\; the body wall muscle cell\; and the coelomocyte. Human ortholog(s) of this gene are implicated in persistent fetal circulation syndrome.