The domain within your query sequence starts at position 2897 and ends at position 2968; the E-value for the RPT_4 domain shown below is 4.19e-13.

ASHNGQCGPFSGQSSGHIQHGPCFGQTEGSFQSSNCGQQGTTSYQSSGFDQQRSGLHQSF
PCSNHESTSQEY

This is a significant internal repeat in the query protein sequence, as detected by the Prospero program.