The domain within your query sequence starts at position 867 and ends at position 977; the E-value for the RPT_2 domain shown below is 8.58e-5.

REQSPEKPRGSTKLSRDRADKEGPAKNRLELVPCVVLTRVKEKEGKVIEHPPPEKLKARL
GRDTTKASALDQKPQAAQGEPAKSDPARGKALREKVLPSHAEVGEKEGRTK

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