Biblatex display references as Section also in toc

biblatex does not interface with tocbibind. It has its own options to control the typesetting of the bibliography heading. The main option you want to look at is printbibliography's heading.

With heading=bibnumbered, you get a numbered heading in the bibliography (this is usually done by just using section or chapter to typeset the heading). There are several other possible values for the heading option and with KOMA-Script classes and to some degree also memoir the default heading=bibliography, also takes into account class settings regarding the bibliography heading.

documentclass[american]{article}
usepackage[T1]{fontenc}
usepackage{babel}
usepackage{csquotes}
usepackage[style=apa]{biblatex}
usepackage{hyperref}

addbibresource{biblatex-examples.bib}

begin{document}
tableofcontents

section{Lorem}
Lorem autocite{sigfridsson}

printbibliography[heading=bibnumbered]
end{document}

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In case you have several printbibliographys in your document or you prefer to apply such settings in the document preamble you could use DeclarePrintbibliographyDefaults to make heading=bibnumbered the default for all printbibliography calls in your document (at least if your biblatex is new enough, the command was added in v3.13 from 2019-08-17).

documentclass[american]{article}
usepackage[T1]{fontenc}
usepackage{babel}
usepackage{csquotes}
usepackage[style=apa]{biblatex}
usepackage{hyperref}

DeclarePrintbibliographyDefaults{heading=bibnumbered}

addbibresource{biblatex-examples.bib}

begin{document}
tableofcontents

section{Lorem}
Lorem autocite{sigfridsson}

printbibliography
end{document}