A member of the forkhead domain family of transcription factors that affects the generation of the AWA and ASG chemosensory neurons and is partially required for male tail morphogenesis and embryogenesis; it is expressed in the AWA and ASG precursors; it is required for the graded spatial expression of the UNC-129 TGF-beta guidance factor.
Enables RNA polymerase II transcription regulatory region sequence-specific DNA binding activity and transcription corepressor activity. Involved in several processes, including axon extension involved in axon guidance; negative regulation of transcription by RNA polymerase II; and nematode male tail tip morphogenesis. Located in nucleus. Expressed in several structures, including HO neuron; hypodermis; ray; tail; and ventral body wall muscle. Human ortholog(s) of this gene implicated in glaucoma and vitiligo. Is an ortholog of several human genes including FOXD3 (forkhead box D3); FOXD4 (forkhead box D4); and FOXD4L1 (forkhead box D4 like 1).