The domain within your query sequence starts at position 1704 and ends at position 1765; the E-value for the RPT_3 domain shown below is 1.07e-5.

PTNKAPEQQRQITLKTTPASGERGIASTSDPPTANIKPTPVVSTPSKVTAAAMAGNKSTP
RA

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