The function of DLX4 (distal-less homeobox 4, ENSG00000108813) is as follows. May play a role in determining the production of hemoglobin S. May act as a repressor. During embryonic development, plays a role in palatogenesis. {ECO:0000269|PubMed:11909945, ECO:0000269|PubMed:25954033}.