Probable transcription factor specific for skin keratinocytes. May play a role in the differentiation of spermatozoa and oocytes. May also play an important role in early urinary-tract development. Highly expressed in ovary, testis and kidney. Expressed at moderate levels in skin and small intestine, and at lower levels in lung. Trace amounts of expression detected in liver and colon. Not detected in brain, spleen or thymus. Detected at embryonic days 15.5 and 17.5. Expressed in the developing lower urinary-tract structures, with emphasis on the genital tubercle above the phallic urethra and below the pelvic urethra at as early as embryonic day 13.5 dpc, the critical time point for urethral development. In embryos, expression is also visible in the brain, in the mandibular region, and in dorsal parts above the spinal cord. Truncated N-terminus.