Paraspeckle component 1 (PSPC1)

Regulates, cooperatively with NONO and SFPQ, androgen receptor-mediated gene transcription activity in Sertoli cell line (By similarity). Binds to poly(A), poly(G) and poly(U) RNA homopolymers.

Regulates the circadian clock by repressing the transcriptional activator activity of this CLOCK-ARNTL/BMAL1 heterodimer (By similarity). Together with NONO, required for the formation of atomic paraspeckles.