How to extract gene-cell Gene Score matrix?

[JiangLab-mitochondria]

I want to get the gene x cell Gene Score Matrix, and I ran the following command:
gene_score_matrix <- getMatrixFromProject(dna, useMatrix = "GeneScoreMatrix")
assays(gene_score_matrix)$GeneScoreMatrix
rowData(gene_score_matrix)

The Matrix returned by assays(gene_score_matrix)$GeneScoreMatrix has row names that are not gene names but numerical identifiers. The DataFrame returned by rowData(gene_score_matrix) also has numerical identifiers as row names. Are these numerical identifiers corresponding? If they are corresponding, I can directly assign the gene names to the row names of the Matrix returned by GeneScoreMatrix.