The domain within your query sequence starts at position 647 and ends at position 708; the E-value for the RPT_1 domain shown below is 3.01e-21.

CTHQEGARLSGAEDGTASEALWLSPVLETVGLFIPHPHPCSLPSTDSRSEGGSRRGLRQK
PL

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