RNA-binding component of the cleavage and polyadenylation factor (CPF) complex, which plays a key role in polyadenylation-dependent pre-mRNA 3'-end formation and cooperates with cleavage factors including the CFIA complex and NAB4/CFIB. Involved in poly(A) site recognition. May be involved in coupling transcription termination and mRNA 3'-end formation. Component of the cleavage and polyadenylation factor (CPF) complex, which is composed of at least PTI1, SYC1, SSU72, GLC7, MPE1, REF2, PFS2, PTA1, YSH1/BRR5, SWD2, CFT2/YDH1, YTH1, CFT1/YHH1, FIP1 and PAP1. Interacts with the phosphorylated CTD domain of RPB1/RNA polymerase II. Present with 639 molecules/cell in log phase SD medium. Belongs to the CFT1 family.