The domain within your query sequence starts at position 266 and ends at position 349; the E-value for the RPT_1 domain shown below is 3.08e-5.

HARRAHNNQSWRSDNNQSWRDLNQSWRGQNNQSQRGHDNQSQRGHDNQSRRGHDNQSQRG
HDNQSQRGHNDQSWRAHNIRSRRD

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