RNA-binding protein that binds to AU-rich element (ARE) sequences of target mRNAs, including VEGF mRNA (PubMed:10710437). May also bind poly-A tracts via RRM 3 (By similarity). May be involved in neuronal differentiation and maintenance (By similarity). Plays a role in the stabilization of GAP43 mRNA and in spatial learning (By similarity). Interacts with MAP1B light chain LC1. Brain specific. RRM 1 and RRM 2 bind cooperatively to AU-rich sequences in target mRNAs. RRM 3 binds to poly-A mRNA sequences (By similarity). Belongs to the RRM elav family.