Transcription factor that may play important roles in patterning the embryonic brain. Could directly respond to the reception of the sonic hedgehog (shh) signal. Predominantly expressed in the embryonic and adult central nervous system. Expression starts between 10 and 12 hours post fecondation and is highest between 2 and 3 days after fertilization. Belongs to the POU transcription factor family. Class-3 subfamily. Contaminating sequence. Potential poly-A sequence.