Polymerase 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. ATP + RNA(n) = diphosphate + RNA(n)-3'-adenine ribonucleotide Binds 2 magnesium ions. Also active with manganese. Component of the cleavage and polyadenylation factor (CPF) complex, which is composed of PTI1, SYC1, SSU72, GLC7, MPE1, REF2, PFS2, PTA1, YSH1/BRR5, SWD2, CFT2/YDH1, YTH1, CFT1/YHH1, FIP1 and PAP1. Interacts with FIR1 and RRP6. Present with 17100 molecules/cell in log phase SD medium. Belongs to the poly(A) polymerase family.