RNA polymerase III is an essential enzyme found in cells that plays a crucial role in the process of transcription. It is responsible for synthesizing small RNA molecules, including transfer RNA (tRNA) and ribosomal RNA (rRNA), which are vital for protein synthesis and cellular function. This enzyme recognizes specific DNA sequences called promoters, which signal where to start transcription. By unwinding the DNA and assembling RNA nucleotides, RNA polymerase III helps create RNA strands that carry genetic information from DNA to the ribosomes, where proteins are made.