DNA-binding protein that seems to act as a transcription factor (By similarity). Involved in the regulation of neuronal differentiation, acts upon JNK-signaling pathway activation and plays a role in neurite outgrowth in hippocampal cells (PubMed:17156131). May mediate with FIBP FGF-signaling in the establishment of laterality in the embryo (By similarity). Promotes cell motility, seems to stimulate tumor metastasis (By similarity). Cytoplasmic during quiescence, translocates to the nucleus upon stimulation. Induced by basic fibroblast growth factor (bFGF). Belongs to the IER family.