The domain within your query sequence starts at position 566 and ends at position 640; the E-value for the RPT_1 domain shown below is 5.53e-5.

QRAEGPANQRTGATENQRVEVLADQRAGVLHDQREEAGPQGIQEASAGSGSRAQKQVKTV
RFQTPGRFSWFRMRR

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