Predicted to enable WD40-repeat domain binding activity; protein folding chaperone; and unfolded protein binding activity. Acts upstream of or within binding activity of sperm to zona pellucida and toxin transport. Located in acrosomal vesicle and cell body. Part of chaperonin-containing T-complex and zona pellucida receptor complex. Is expressed in 8-cell stage embryo. Orthologous to human CCT6A (chaperonin containing TCP1 subunit 6A). [provided by Alliance of Genome Resources, Apr 2022]