RNA-binding protein which mediates polarized mRNA (e.g. Ran2 transcripts mRNA) transport from the nucleus to the vicinity of the cell plate during cytokinesis and phragmoplast formation. Interacts with phragmoplastins (e.g. DRP1A, DRP1B, DRP1C, DRP1D and DRP1E) and with GTP-bound ARAC11/ROP1 as well as with Ran2 transcripts. Associates with the forming cell plate during cytokinesis; may shuttle between the nucleus and the forming cell plate.