Predicted to enable RNA polymerase II transcription regulatory region sequence-specific DNA binding activity. Involved in motor neuron axon guidance. Predicted to be active in cytoplasm and nucleus. Is expressed in several structures, including amnioproctodeal invagination; embryonic head epidermis; embryonic/larval dorsal vessel; gut section; and larval somatic muscle cell. Human ortholog(s) of this gene implicated in pre-eclampsia. Orthologous to human STOX1 (storkhead box 1) and STOX2 (storkhead box 2).