Transcription factor involved in symbiotic nodule signaling in response to rhizobial Nod factors (NFs). Binds to the GCC box (NF-responsive box) of ENOD11 promoter. May act as transcriptional repressor of NF-responsive box-containing target gene promoters in root hairs. Expressed in roots, root hairs and leaves. Induced by Nod factors in root hairs. Belongs to the AP2/ERF transcription factor family. ERF subfamily.