The domain within your query sequence starts at position 442 and ends at position 821; the E-value for the RPT_1 domain shown below is 1.71e-12.

KARLGDTPEAPPRSAQRRMGVRTQEEAPSDLNPPPAEPEEHLGDLRDARPAGQEKGSAEV
RGKVPAIGRAGPEQGSSARAASAGPQVSCVQTVPSDGQGVKSRDQRAQEAEVGESRVLET
EAEWVPWEVIGTSKTDAGIPESLDTEAGTAESEILEAQESEAARSEGLEPEAAGTAESEV
LRTQNNEIVVLGMPRTGPEIREPEEFGETEVGGFTVPDTKTVIAETEILETQGVVDGEAA
VLKTQAEILETQKTEAGEAEAGTLESQKVAAEGLGAPEVGAEMAEAEKLGVQETEVEIWR
IPRIETETAGTETLGIHKIGPPQMQPRLVGDQETDVSVMETAEDAILGTREISAGCGVLL
IEAKIPESKIDRSLETEEGD

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