Transcriptional regulator. Recognizes and binds to the DNA sequence 5'-GCGGGGGCG-3' (GSG). Activates the transcription of target genes whose products are required for mitogenesis and differentiation (By similarity).
Uvarov, Ludwig, Markkanen, Rivera, Airaksinen: "Upregulation of the neuron-specific K+/Cl- cotransporter expression by transcription factor early growth response 4." in: The Journal of neuroscience : the official journal of the Society for Neuroscience, Vol. 26, Issue 52, pp. 13463-73, (2006) (PubMed).