Component of the NOP7 complex, which is required for maturation of the 25S and 5.8S ribosomal RNAs and formation of the 60S ribosome. Component of the NOP7 complex, composed of erb1/SPBC4F6.13c, ppp1/SPBC19F5.05c and ytm1/SPAC890.04c. Within the NOP7 complex erb1/SPBC4F6.13c appears to interact directly with ppp1/SPBC19F5.05c and ytm1/SPAC890.04c. The NOP7 complex also associates with the 66S pre-ribosome. Belongs to the pescadillo family.