The domain within your query sequence starts at position 296 and ends at position 967; the E-value for the RPT_1 domain shown below is 9.01e-39.

IPNQVPRAAFMAMFVLEVDQFILTPLTTSVLDCEEDETPKPLLVFNITKAPLQGYVTHLL
DHTRPISSFTWKDLSDMQVAYQPPNSSHPERRHYTMELEVYDFFFERSAPITVHISIRTA
DTNAPRVSWNTGLNLLEGQSRAITWEQFQIVDNDDIGAVQLVTIGGLQHGRLTVREGKGF
LFTVTDLQAGVVRYHHDDSDTTKDFVAFRIFDGHHSSHHKFPINILPKDDSPPFLITNVV
IELEEGKTILIQGSMLRASDMDSSDDYIFFNITKFPQAGEIMKKPGPRLIGYPVPGFLQR
DLFSGIIYYRHFGGEIFEDSFEFVLWDSHEPPNLSVPQVVTIHITPVDDQLPKEAPGISR
HLVVKETEVAYITKKHLHFLDMESRDGELIYTVTRPPCFSFSHRHLDAGKLFMVDSIPKL
TKNPTAPGLSSFTQHAVNHMKVAYMPPMQDIGPSPRHVQFTVSVSNQHGGALHGICFNIT
VLPVDNQVPEVFTNTLRVVEGGQCTISTEHILVSDVDTPLDSISLSLKERPLHGGVELDG
FPLNPRGTFSWRDLNTLKVWYQHDGSEVLQDEIFLEVTDGTNSAAFVLHIEVFPVNDEPP
ILKADLIPMMHCSEGGEVTITPEYISATDADSDDLELLFLIAREPQHGVVRKAGLHVDRF
SQGDVISGAVTY

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