The RNA5SP305 gene is a member of the ribosomal RNA (rRNA) gene family, specifically categorized as a small nucleolar RNA (snoRNA). While my training data does not provide direct summaries from NCBI and UniProt, I can give you an organized overview based on common features associated with the gene.

### Basic Description:
- **Gene Symbol:** RNA5SP305
- **Type:** Small nucleolar RNA (snoRNA)
- **Function:** Involved in the modification of other RNA molecules, specifically rRNA.

### 1. Associated Genes:
RNA5SP305 may be linked to other snoRNA genes within the same cluster or family. However, snoRNAs are generally known to function in complexes and could associate with various ribosomal and RNA processing genes. Specific associations for RNA5SP305 were not provided in your initial request, and detailed interactions would typically require specific literature reviews or a database search.

### 2. Aging and Age-Related Diseases:
As for its involvement in aging or age-related diseases, snoRNAs, including those like RNA5SP305, can play roles in the regulation of ribosomal biogenesis and RNA processing, which can be pertinent in the aging process. Some studies have associated disturbances in snoRNA expression and modifications with various age-related conditions, including neurodegenerative diseases and cancer. However, specific associations of RNA5SP305 itself would need further investigation through dedicated studies on aging-related molecular changes.

### 3. Drug Interactions:
Currently, there are no specific drugs or drug classes directly known to interact with RNA5SP305. Generally, snoRNAs target RNA molecules, and while some therapeutic agents may influence RNA processing pathways, it would be uncommon for drugs to target snoRNAs specifically. Instead, therapeutic interventions affecting the pathways in which snoRNAs function—such as those related to ribosome biogenesis—would need to be explored instead.

### 4. Pathways and Biological Processes:
RNA5SP305, as a snoRNA, is involved primarily in:
- **Ribosome Biogenesis:** Facilitating the maturation of rRNA and assembly of ribosomal subunits.
- **RNA Modification:** Participating in the chemical modification events such as methylation of rRNA, which is crucial for ribosomal function and stability.
  
Further, snoRNAs are generally linked to various cellular functions, and aberrations in their expression can be implicated in diseases such as cancer due to their roles in controlling gene expression and ribosome functionality.

### Conclusion:
For specific and recent studies regarding RNA5SP305, including its associations, roles in aging, drug interactions, and molecular pathways, I recommend researching scientific literature databases or genomic databases like PubMed, Ensembl, or specialized biochemistry resources to get the most current findings.