The domain within your query sequence starts at position 1196 and ends at position 1287; the E-value for the RPT_3 domain shown below is 2.13e-10.

LQRTSVQKEMKDFLLDRIKSILESFSVHQETKKLLLNRIMSILESSTVHQETKKLLLDRI
HSILKSSSVQKETKNLLLDRIHSILKSSSVQK

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