Involved in poly(A) tail length control in neuronal cells. Binds the polyadenosine RNA oligonucleotides.
Nucleus speckle . Colocalizes with poly(A) RNA in nuclear speckles. .; [Isoform 1]: Nucleus speckle.; [Isoform 3]: Nucleus speckle.; [Isoform 6]: Cytoplasm .
Isoform 1 and isoform 6 are expressed in fetal and adult brain. Isoform 1 and isoform 6 are expressed in fetal and adult temporal lobe.