The domain within your query sequence starts at position 844 and ends at position 954; the E-value for the RPT_2 domain shown below is 6.27e-5.

REQSPEKPRGSTKLSRDRADKEGPAKNRLELVPCVVLTRVKEKEGKVIEHPPPEKLKARL
GRDTTKASALDQKPQAAQGEPAKSDPARGKALREKVLPSHAEVGEKEGRTK

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